Skip to main content
Informational

Data use:

We use cookies and similar tools to make your use of this website easy and to keep it working properly. We may share data about you and how you use the site with third parties, such as analytics and marketing partners. Learn more in our Privacy Policy and Terms of Use. By continuing to use the site, you agree to this.

Health care

We provide affordable and personalized care

How can we help?

Helpful links

Financial

Accounts to help you save and pay for health care expenses

How can we help?

Helpful links

  • Resources

    Find contribution limits, savings tools, calculators and eligible expenses

  • Account support

    Find contact information and frequently asked questions

Tax season resources

Get ready for HSA tax season

If you used an HSA this year, the HSA Tax Center offers general information about contributions, eligible expenses and commonly used tax forms — all in one place.

Pharmacy

We make it easy to get medications you need, when and where you need them

How can we help?

Helpful links

  • Optum Rx

    For people with pharmacy insurance benefits through Optum Rx

  • Track orders

    Track your home delivery and specialty order

  • Pharmacy support

    Find contact information and answers to frequently asked questions

Mobile app

Optum Rx on the go

Request refills, track order status, manage billing information and much more.

Download on the App StoreGet it on Google Play

Karen Rosa Nunez-Wallace, MD

Optum Provider

Specialty

Neurology

Languages

English

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.5

53 reviews

    • Reviewed on Aug 28, 2026
    • Verified Review

    She explains everything very thoroughly and she responds to my messages in a timely manner. She seems like she truly cares and really listens to me

    • Reviewed on Aug 15, 2026
    • Verified Review

    She’s good in explaining the cause of my problem Her personality is not that approachable.

    • Reviewed on Aug 13, 2026
    • Verified Review

    Satisfied my needs. Very confident and loyal. Spoke clearly and I was able to hear her.

    • Reviewed on Aug 5, 2026
    • Verified Review

    She spends time with me.

    • Reviewed on Aug 4, 2026
    • Verified Review

    Good listener

    • Reviewed on Jul 17, 2026
    • Verified Review

    She helps me . Her office does not necessarily do everything.

    • Reviewed on Jul 16, 2026
    • Verified Review

    knowledgeable & professional

    • Reviewed on Jul 16, 2026
    • Verified Review

    Very professional & knomledgeable

    • Reviewed on Jun 24, 2026
    • Verified Review

    Great doctor

    • Reviewed on Jun 19, 2026
    • Verified Review

    Dr. Nunez-Wallace listened to what I had to say and proceeded with a professional manor.

    • Reviewed on Jun 16, 2026
    • Verified Review

    She was very thorough and explaining diagnosis. Friendly and respectful.

    • Reviewed on Jun 10, 2026
    • Verified Review

    Her professional and personal concerns while examining me.

    • Reviewed on Jun 5, 2026
    • Verified Review

    Very thorough, communication was good. Knowledgeable.

    • Reviewed on Jun 5, 2026
    • Verified Review

    She is a very good neurologist and I like to see her because she is really nice and polite . And I would recommend it to other people.

    • Reviewed on Jun 5, 2026
    • Verified Review

    Dr. Nunez did a great job explaining things to me.

    • Reviewed on May 29, 2026
    • Verified Review

    Is Dr. Nunez-Wallace okay? Is she going through life challenges? She seemed unhappy to be there, maybe burnout? She was not very friendly nor pleasant; engineer-robotic like.

    • Reviewed on May 21, 2026
    • Verified Review

    Explains all possibilities all other venues of attacking what is ailing you.

    • Reviewed on May 16, 2026
    • Verified Review

    she seemed to want to treat me a stressed and overworked mom. Didnt listenm only judged

    • Reviewed on Apr 29, 2026
    • Verified Review

    Dr Nunez was kind, professional, and thorough

    • Reviewed on Apr 23, 2026
    • Verified Review

    She seems smart . I am not sure she is always listening though. She seems to always check my walking etc.. I often get more information from relatives with epilepsy

Page 1 of 3
  • Gender

    Female

    Board certifications

    American Board of Medical Specialties (CertiFACTS)

    Licenses

    CA, C163965

    Network Name

    OptumCare HealthCarePartners California

    Hospital affiliations

    OptumCA Hospitalist - Employed Hospitalist Group LA NW

  • Education

    Medical School

    • Baylor College of Medicine Neurology

      2011